Title field storage definition update does not respect $settings['node_title_length_chars']

Problem/Motivation

The title_length_install() function does not respect $settings['node_title_length_chars'] when updating the definition for the title field:

$fields['title']->setSetting('max_length', 500);

Steps to reproduce

1. Set $settings['node_title_length_chars'] = 2000; in settings.php
2. Enable this module
3. Get the "Mismatched entity and/or field definitions" in the status report page (/admin/reports/status)

Proposed resolution

$fields['title']->setSetting('max_length', 500);

should be

$fields['title']->setSetting('max_length', $length);